Recording apparatus



April 15, 1924- F. w. G. BRUHN RECORDING APPARATUS Filed Sept. 2, 1921 3Sheets-Sheet 1 WW WM mm am...

1,490,586 F. w. G. BRUHN RECORDING APPARATUS Filed Sept. 2. 1921 sSheets-Sheet 2 April 15 1924.

mm @m F m E @Q x Q WLW w n M J h Q.$/A wv 9w! 1 H m w k x 5 m i m g Um MApril 15, 1924. 1,490,586 r F. W. G. BRUHN RECORDING APPARATUS FiledSept. 2. '1921 3 Sheets-Sheet 3 the invention comprises the desiPatented Apr. 15, 1924.

UNITED STATES FRIEDRICH WILHELH GUSTAV E8317, 0] BERLIN-WILKEBSDOBJ,GEBIAKY.

RECORDING APPAIA'I'UI.

Application flledleptember 8, 181. Serial Io. 497,807.

To all whom it may concern:

Be it known that I, FRIEDRICH WILHELM GUSTAV BRUHN, residing" atBerlin-Wilmersdorf, Nassauischestr. 64, Germany, have invented certainnew and useful Improvements in Recording Ap aratus, of which thefollowing is a speci cation. 9

My invention has for its object primarily recording apparatus designedto be employed for the supervision of the running times, speeds andnature of operation existing for the time being of vehiclcs 'of anydescription, also of railway vehicles, operativemachines, and otherdevices, which are tobe kept under suitable control and observation. Tothis effect, a counting mechanism indicating the total number ofrevolutions, or kilometers, or otherdistance units is driven by one partof the machine to be observed, c. g. by a wheel, whereas on the otherhand a marking mechanism or scriber is set in motion which, on a dial orsimilar chart moved by a clockwork produces marks which permit ofdrawing conclusions reg-:rding the nature of operation of the mac ine orvehicle.

My invention refers more particularly to a novel arran ement of suchrecording apparatus intendedin the first'place to permit of an easilyrecognizable observation of the effectiveness of the marking device andof the operation to be supervised. Moreover rangement ofthe means formaking the ob servations. It also comprises further the particularlyadvantageous design of the other parts of the apparatus in such manneras to permit of an exceedingly appropriate and simple arrangement of thevarious parts of the controllir device. Finally, myinventioncontemplates the special design of the general arrangement wlth a viewto an easy readability of the markings and of the counting mechanism,as'also the reliability and simplicity of operation, and the particularconditions under which the machine ma be 0 crating at the time.

v description.

ith t ese and other objects in view, the invention will be hereinaftermore particularly described with reference to the accompanying drawings,forming part of this and ar- I The apparatus shown on the accompanymgdrawings by way of example represents a recording apparatus such as usedmore particularl for vehicles, either horse-drawn the interior thecasing being shown in vertical sect-ion.

Figure 4 is a bottom plan of'that portion of the apparatus containingthe marking and counting mechanism.

7 F 1 4 represents a perspective view of the evice for imparting themovement of the driving shaft to themarking and, count- 'ing mechanism.

igure 5, represents a vertical sectional view, one part of which istaken below the lower front plate of the clockwork, the other part beintaken above the rear part of the same cloc work. i

Figure 6, shows a detail in enlarged scale. The entire arrangement iscontained in a flat cylindrical casing 1 which is closed by a cover 2rovided with a window 3. The cover is astenedto the casing by means .ofa hinge 4 and is locked-at the opposite side by means of a bolt orsimilar locking device which may be sealed in a suitable manner. Thecasing contains two works, the lower one of which serves for operatingthe two marking devices and the counting device,

whereas the upper one serves for the tr ansort of the recording dial orchart. he ower works, whichare illustrated more par ticularly in theFigures 2 and 5 in front elevation, and in the Figures 3 and 4 in sideelevation, are arranged between the plates 6 and 7. The lowerworks aredistinguished byan extremely simple construction which permits ofarranging ithe'two marking devices within close proximityof each other,this greatly facilitating the observation.

The upper plate 6 of these works is provided wit an aperture 8 for thedriving ratchet wheel 9, an arced a rture 10 for the main markingdevice'whic .in the present case is designed'asa unch, and a small cir:cular aperture 12a mitting' an additional punch'having a blunt head orbeating pin 13 which is'set-in motion by the vibrations imparted to thedevice. Fig. 6 shows. the beating head 13 of the pin 13.

, Asillustrated in Fig. 1, the marks of the punch 11 serving as mainmarking device and perforating the chart 14 from the rear, appear in theknown manner in the shape of zlg-zag curves, whereas the pin 13 acts 1nsuch manner on the recordin chart, that the latter becomes embossed, anthe marks appear on the outer rim of the chart where they formthemselves in a circle-segment for the period during which the recordingdevice is exposed to vibrations.

The recording chart 14 is held against the perforating movement takingplace from the rear to the front, by a horn 16-one side of which comesup close to the perforations without, however, covering them over, sothat as Fig. 1 shows, the markings are clearly visible from the verymoment they are produced. The horn 16 is held to the upper plate 6 bymeans of a support 17 (Fig. 4) in such a manner that it is pressed uward automatically under the influence o a spring 18 whenever the coverof the casing is opened. Only when the cover is pressed down, the spring18 is depressed, the horn 16 being thus brought correspondingly nearerto the recording chart.

The upper late 6 has inserted in it the counting mec anism 19, thenumbers of which appear inside a correspondingly large sector of therecording dial 14 (of. Figs. 1 and 2). This arrangement permits ofplacing also the. counting mechanism inside the casing and avoiding thetransparent recording charts and pressing-down arrangement hithertoused.

- Into the casing 1 a rotating spindle 20 is introduced from below, thiss indle being connected to a flexible driving s iaft through theintermediary of which it is set in motion from one of the wheels of thevehicle. Inside the casing the spindle 20 is fitted with an eccentric 21(Figs. 4, 4 and 5) which turns within a forked lever 22. This leverturns on a shaft 23 and is rigidly connected to a lever arm 24, thelatter carryin a ratchet feeding pawl 27 which is pivoted on the spindle25. This pawl engages under the influence of a spring 26 the teeth ofthe ratchet wheel 9 which, on the other hand, is also under theinfluence of a retaining pawl 28. When the forked lever 22 is moved upand down by the spindle 20 and eccen trio 21, the pawl 27, which ispivotally mounted on lever 22 in a transverse vertical plane throughpivot point 23, follows the rocking motion of the lever. Since pawl 27is pivoted as shown, so that it swings itself in a plane at right an lesto the operating plane of lever 22, in 0 er to enable it to be pressedinto engagement with ratchet wheel 9 by means of spring 26, this pawlwill feed the ratchet wheel step by step in clockwise direction (seeFig. 4") when lever 22 is rocked by eccentric 21. The ratchet wheel 9may easily be taken off its shaft 30 on which it is fastened, byloosening two small screws 29 (cf. Fig. 2). The shaft 30 is rotatablysupported in a plate 31 and in the lower plate 7 and carries a worm 32and a cog wheel 33 the teeth of which run in axial direction and arefaced obliquely only on one side. Into the worm engages a gear wheel 34which is fastened on the shaft 35 mounted rotatably below the upper late6. This shaft carries a second gearw ieel 36 which, in a manner not re)resentcd on the drawing engages rearwardly in the first driving wheelof the counting mechanism 19. Finally, a cylinder 37 is fastened u onthe shaft 35, the end surface of which is faced off obliquely. Againstthis oblique surface a. roller 38 presses, this roller being fixed to abell crank 40 supported on a shaft 39 between the two plates of theworks. The other end of this bell crank contains the punch or needle 11which passes through the slot 10 of the plate 6 and owing to thecooperation of elements 37, 38 describes the previously mentioned curvedreciprocating movement corresponding to the marks on the recording chart14. The coupling of the driving worm with the counting mechanism and thecurved guide for the main marking member 11 by means of the shaft 35 isof particular value for the simplification of the entire 0 ratingmechanism and ermits of placing tie two marking devices irectly ad acentto each other for effecting the marks on the recording chart.

' A cam 41'acts in con unction with the cog wheel 33 fixed upon thespindle 30, this cam being fastened to a plate 42 (cf. Figs. 4 and 5).This plate is rotatably mounted on a pivot 45 in two projections 44 ofthe lower plate 7 arid is under the influence of a leaf s ring 46 whichtends to hold the plate in t e center sition as represented on thedrawing. en the worm wheel 32 turns in the direction of the arrow, thecam 41 and, with it the plate 42 are pressed downward thus putting thespring 46 under tension. However, whenever the cam tilts over one of theco s of the wheel, it dro s into the next gap hitting the free end ofthe rforating lever 40 with a strong blow t us forcing the punch 11through the registration chart.

The easily removable fixture of the ratchet wheel 9 has the-advantagethat the recording apparatus may be very'conveniently adjusted to thediameter of the driving road wheel by simply exchanging the readilyaccessible ratchet wheel. The a rture 8 in the upper plate 6 is made sourge that ratchet wheels for all customary sizes of road wheels may befitted.

The beating mechanism 13 set in motion by vibrations of the entireregistering apparatus, is arranged at the end of the shorter m of e bellc a k 47, the latter being tween the teeth, the p ate 42 rotatablmounted on a spindle 48 and being provide at its other r arm with aweight 49 (Figs. 3-5). Or inarily, a spring 50 pulls back the pin 13 inopposition to.

7 effect. These marks are quite independent I of the record of the mainmarking device tire that it respon and, in the example illustratedv inFi 1, convey the information that the car has been run uninterruptedlyfrom 10 a. m. till 12.30 p. m. and then intermittent] up to 6.30 p. m.,and further in the evening from 8.15 till 9.30 m., and again from 11.45p. m. till 2 oc ock in the morning, without the main marking devicehaving made any record at all; it may, therefore, be concluded that thedrive of the main marking device has in some manner been put outofaction during the last two periods. This vibratory marking device maalso be made so sensieven' to the vibrations of the on he of a motor carrunning idle whereby it is possible to obtain a record on the recordingchart of the time during which the engine is running while the car a'thenumbers signifying hours printed thereis standing. I

The clockworks 51 serving for the trans port of the registration chart14, is held between two plates 52, 53 (cf. Figs. 2 and 3). The upperplate 52 carries another late 54 over which the interior aperture 0 the.recording dial 14 fits exactly. Two rejections or lips 55 of this plate(cf. ig. 1) provide a support for the front of the recording chart sothat it cannot slip of. The clockwork 55 drives by means of an exteriortoothed rim 56 and t-hrou h the intermediary of a train of gear w eelsnot represented on the drawing, its balance 57. Its winding ratchetwheel .59 located at the lower surface and working in conjunction withthe ratchet pawl .58, is fitted with a lever 61 (Fig. 5) which is keptunder tension by a spring 60. When the clockwork iswound up by means ofa key laced over the square winding arbor 62 (cf. ig. 5), the

lever 61 will first strike against a stop 63 whereby its spring is putunder tension. During the further rotation of the ratchet wheel 59,,thelever slips ofl' this stop and strikes against a bell crank 65 rotatablymounted upon a spindle 64, whose other, resilientarm moves past theouter rim of the balance 57 in the manner indicated by the dotted arrow.thus carrying the latter along with. it. In this manner. the clockmovement is started automatically during the winding-up operation and astoppage of the clock is thereby prevented...

The upper portion of the clock movement is provided with two toothedrims 66 and 67 engaging a pinion 68 which serves for the transport ofthe recording chart 14 (Fig. 2). This pinion is mounted in the plate 52slidingly on a pivot 69 and is provided with. a hub 70 which is providedwith an annular oove 71. Into this. groove enga es a for ed lever 72,the opposite end of w ich is guided by means of a pivot 73 in a slot ofthe plate 52 and is connected to a head 75 protrudin beyond the slot.Thelever 72 is provide 76 into which engages a resilient counter lever77. A spring 78 keeps the forked end with two catches is moved in one orother direction, the a pinion 68 is made to engage either with the outerrim 66 of the clockwork or with the inner toothed rim 67. Accordin lythe wheel 68 will be madeto turn at ifierent velocities, the dimensionsbein made such, t of the center of t e recording chart 14, that thelatter when driven from the'toothedrim 66, moves at double thecircumferential speed of thatimparted by v the toothed rim 67.]

In the example illustratedon the drawing the recording chart istransported by the interior toothed rim 67 and, corresponding to on,makes one revolution per day. When the driving pinion is shifted towardthe interior by means of the knob 75, the circumferential speed isdoubled and it is'possible to'use a recording chart for 12 hours. Withdue consideration for the corresponding time units, also the samerecording dial may be used.

A check as to which of the two speeds has been used during the recordingis possible by the pinion 68 also producing a mark during its operation,this mark being made near the inner or outer edge of an interior annularstrip 79 of the recording chart. The punctuation indicated on theinterior side of the annular surface would mean that the same recordingdial has also been run for a.

certainv period at double the speed which would indicate a doubleutilization of the recordin dial. V

In 0 er to provide for an effective coupling of the recording dial 14with the driving pinion 68 and, at. the same time for producing themarks previously mentioned. the abutmentshown in Figs. 1 and 3 has beenprovided. This consists of a lever 80 mount;

ed rotatably within the plate 54,. the short interior end of which isacted upon by a spring 81 in such a manner that this spring tends toretain this lever in the depressed position as represented, or else inan upturned position forward. A cylinder 82', is rotatably supported ona spindle 83 within an aperture 82 of the lever 80. This cylinder isprovided with two slots 84, 85, one or another of which, according tothe position of the driving pinion (38 registers with the latter thuspressing the recording chart down upon the teeth of the pinion.Notwithstanding the pressure of the cylinder 82 being comparativelylight. the coupling of the recording chart with the driving pinion isabsolutely positive and secure.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:-

1. In recording apparatus of the type described the combination of aclockwork, a recording chart which is driven by said clockwork, adriving ear operated by the ob'ect to be observed a marking evice drivenby said driving gear and working from the rear against the recordingchart in a direction at right angles thereto, and another marking deviceset in motion by the vibrations im arted to the ap )aratus by the objectto be 0 rved also wor ing from the rear against the recording chart in adirection at right angles thereto, the markings of both marking devicesbeing visible on the face of the chart.

2. In recording apparatus of the type described the combination of aclockwork. a recording chart which is driven by said clockwork, amarking pricker working from the rear against the recording chart, adriving gear operated by the object to be observed setting in motionsaid marking pricker, a

bell crank lever influenced by a weight, a

bearing support for said lever, a spring 1nfluencing said lever, and ahammer-like punch fixed to said lever working from the rear against therecording chart. in a direction at right angles thereto, the markings ofthe ricker and of the punch being visible on the face of the chart.

3. In recording apparatus of the type described the combination of aclockwork, a recording chart which is driven by said clockwork, amarking device working from the rear against the recording chart in adirection at right angles thereto. a driving gear operating said markingdevice and driven by the object to be observed, another marking deviceset in motion by the vibrations imparted to the apparatus by the ob jectto be observed working from the rear against the recording chart in adirection at right angles thereto, and an abutment for the recordingchart arranged to one side adjacent to both the marking devices, themarkings of both the marking devices being visible on the face of thechart from the moment of their origin.

4. In recording apparatus of the type de scribed, in a casing thecombination of a clockwork, a recording chart driven by said clockwork,a marking device, a counting mechanism, a driving member operated by theobject to be observed, another marking device set in motion by thevibrations imparted to the apparatus by the object to be observed, boththe marking devices working in a direction from the rear against therecording chart at right angles thereto in such manner that the markingsare visible on the face of the chart, two plates connected together andforming a support for the marking devices and the counting mechanism, aratchet wheel set in motion by the driving member and arranged within anaperture in the front plate of said plates through which it may easilybe exchanged, a worm drive actuated from the ratchet wheel, a shaft couled to the worm drive, a driving pinion or the counting mechanismmounted on the shaft, and a curved driving member for operating thefirst said marking device also mounted on said shaft.

In recording apparatus of the type de scribed, the combination of aclockwork, an annular recording dial or chart moved by said clockwork, amain marking arrangement operating upon the said chart, a countingmechanism, and a driving arrangement moved by the object to be observedand simultaneously driving the marking and counting devices, with amarking device which 15 only operated by the vibrations imparted to therecording apparatus, a marking member attached to the said mar;- ingdevice, a bearing arrangement for the marking member designed to permitof the" latter acting upon the outer rim of the recording chart adjacentto the marks of the main marking device, difi'erent driving gears of theclockwork, and a driving pinion for the recording chart. this pinionbeing made slidable so that it may be made to engagd with the differentdriving gears whereby, according to its adjustment, the driving pinionproduces different marks on the recording chart.

6. In recording apparatus of the type described, the combination of aclockwork, an annular recording dial or chart moved by the saidclockwork, a main marking arrangement operating upon the said chart, acounting mechanism, and a driving an rangcment moved by the object to beobserved and simultaneously driving the marking and counting devices,with a mark ing device which is only operated by vibrations imparted tothe recording apparatus, a bearing arrangement for the said markingmember designed to permit of the latter acting upon the rim of therecording chart adjacent to the marks of the main marking device, anaperture in the center of said chart, different driving gears of theclockwork and a driving pinion for said chart, this pinion being madeslidable in order that it may be caused to engage with the differentdrivinggears whereby, according to its adjustment, the driving pinionproduces different marks on the chart near the interior aperture ofsame, a lever located inside the aperture of the chart, this lever beingmade so that it may turn up or down and press the recording chart downupon the driving pinion.

7. In recording apparatus of the type described, the combination of aclockwork, an annular recording dial or chart moved by the saidclockwork, amain marking arrangement operating upon the said chart, acount ing mechanism, and a driving arrangement moved by the object to beobserved and simultaneously driving the marking and counting devices,with a marking device which is 0111 1 operated by the vibrationsimparted to t e recordin apparatus, difierent driving gears'of t eclockwork and a driving pinion for the recording chart, this pinionbeing made slidable so that it may be caused to engage with thedifferent driving: gears whereby, according to its adjustment, thedriving pinion produces different marks on the chart near the interioraperture of same, a lever, a spring acting upon this lever, and a secondresilient lever which during the winding up of the clockwork, is set inmotion by the first lever thus starting the balance of the clockwork tomove.

In testimony whereof I affix my signature in presence of two witnesses.

FRIEDRICH WILHELM GUSTAV BRUHN. Witnesses:

Dr. MURT IMMANUEL, WERNER SPATH.

